go-es Get in touch

Software Engineering Studio · Japan · Est. 2026

Quiet systems,
working AI.

We build the systems small and mid-sized businesses run on — and put AI to work inside them.

中小企業の業務を支えるシステムをつくり、その中で AI を実際に働かせる。

go-es
  • Software Engineer
  • Web System Development
  • Business System Development
  • AWS Infrastructure & Operations
  • Generative AI
  • Business Process Automation
Built with Claude Web · Business · Cloud · AI Japan / Remote

01 — Services

What we do

できること

One engineer, from requirements to operation. Small enough to understand how your team actually works; deep enough to run it in production.

i.

Web System Development

Web システム開発

Web applications, dashboards and corporate sites — from requirements to release and maintenance.

ii.

Business System Development

業務システム開発

CRM, POS migration, membership and reporting tools, shaped around how your team really works.

iii.

AWS Infrastructure & Operations

AWS インフラ構築・運用

Design, build, migration and day-to-day operation of AWS, with cost and security reviews.

iv.

Generative AI

生成 AI 活用

AI agents and knowledge platforms built on Claude, embedded into real business workflows.

v.

Business Process Automation

業務自動化

Invoices, reports and recurring office work, automated by connecting the SaaS you already use.

vi.

AI-native Engineering

AI ネイティブな開発体制

Our own development runs on Claude Code — a small studio delivering with speed and test depth.

02 — Works

Selected work

主な実績

Client names are withheld for confidentiality. 守秘のため、取引先名は伏せて記載しています。

01

AI agent platform

AI エージェント基盤

A multi-tenant platform where Claude-based agents handle routine business tasks for SMBs.

Generative AI
02

AI management OS

専門家向けの AI 経営基盤構築

Finds operational bottlenecks from CRM data and proposes improvements — planning, design and build.

Generative AI
03

CRM & activity reporting

CRM 運用・活動集計ツール

Activity reporting and CRM operation support for a real-estate and hospitality group.

Business System
04

POS system migration

POS レジ移行

Selecting and migrating a point-of-sale system, including data and menu setup.

Business System
05

Infrastructure modernization

インフラ保守・最新化

Maintenance and modernization planning for a regional company's servers and AWS environment.

AWS
06

Corporate sites & analytics

コーポレートサイト・アクセス解析

Websites and GA4 analytics dashboards for a seafood producer and other small businesses.

Web
07

Back-office automation

請求書・バックオフィスの自動化

Automatic sorting of incoming invoices and integration with accounting SaaS.

Automation

03 — Approach

How we work

進め方

“AI is most useful when it disappears into the work people already do.”

STEP 01

Understand the work

業務を知る

We start from the daily flow on the ground, not from the tool.

STEP 02

Build small, ship early

小さくつくり、早く出す

Working prototypes in weeks, refined with the people who use them.

STEP 03

Put AI to work

AI を業務に組み込む

Claude-based agents and automation, run and maintained in production.

04 — About

Profile

事業者概要

Name / 屋号
go-es
Founder / 代表
Tomoya Sako 迫 智也 — Software Engineer
Founded / 開業
June 2026 2026年6月
Location / 所在地
Japan 日本
Business / 事業内容
Web & business system development, AWS infrastructure and operations, generative AI solutions, business process automation
Web・業務システム開発、AWS インフラ構築・運用、生成 AI 活用支援、業務自動化

05 — Contact

Let’s build quietly.

ご相談・お見積りはお気軽にどうぞ。

sako@go-es.jp